Vulnerability in Prefecthq Prefect
CVE-2026-7724
A vulnerability has been found in PrefectHQ prefect up to 3.6.28.dev1. Affected by this vulnerability is the function validate_restricted_url of the component Webhook/Notification. The manipulation leads to time-of-check time-of-use. It is…
Vulnerability class: Race Condition
EPSS: 0.000 (7.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Prefecthq Prefect — versions 3.6.28.dev1, 3.6.28.dev2
Weakness classification (CWE)
References
- VDB-360900 | PrefectHQ prefect Webhook/Notification validate_restricted_url toctou (technical-description, vdb-entry)
- VDB-360900 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- Submit #807303 | PerfectHQ Perfect >=3.6.26 Time-of-check Time-of-use (third-party-advisory)
- cna@vuldb.com (issue-tracking)
- cna@vuldb.com (issue-tracking, patch)
- cna@vuldb.com (exploit)
- cna@vuldb.com (patch)
- cna@vuldb.com (patch)
- cna@vuldb.com (product)
Frequently asked questions
- What is CVE-2026-7724?
- CVE-2026-7724 is a medium-severity vulnerability in Prefecthq Prefect, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 5.0/10. Published 2026-05-04.
- How severe is CVE-2026-7724?
- Medium severity. CVSS v3 base score is 5.0 out of 10.